My bandmate is considering adding the line 6 HelixFx to his board. His main concern is durability as he's on his 7th DL4 (they are known for breaking). We play 60-90 shows a year with the potential for more, so we need equipment that will hold up. I know it's a relatively new piece of equipment but hopefully people can chime in with their experiences. Hopefully those experiences involve live use . Thanks!